Environmental Chemistry

What is fog definition,types and causes?

Fog meaning?


What is fog definition types and causes?

Fog meaning:

Fog meaning
Fog meaning

Fog meaning is a climatic condition where a cloud of water vapor approaches near the ground level, and fog may also mean clouds of smoke particles, ice or a mixture of them.

Fog leads to lack of horizontal visibility depending on its intensity and intensity, and as a result it may cause many air and land hazards, it occurs fog in the weather cold and wet, especially in winter and autumn, may occur at night or day.

Its occurrence is limited to wind speed low only, so what makes scientists and climate experts predict difficulty in fog and degree of occurrence.

This article will be interested in answering the question what fog meaning is?

“How Fog is made, “of all kinds, pal In addition to clarifying the damages and risks of fog.

[1] How is fog formed?

Fog occurs as a result of condensation of water vapor in its gaseous state, resulting in droplets of water that look like suspended in the air.

The fog increases in intensity as the humidity increases in the air, in addition to that the fog needs a little pollution in the air, because the water vapor condenses around the dust particles

For example:

In the case of sea fog, water vapor molecules condense around the salt atoms, and there are multiple types of fog, as one of the types is radioactive or terrestrial fog, which occurs in the evening as a result of low air temperatures and the release of the Earth to heat absorbed during the day

Fog Adaptation that occurs when blamed O Warm, humid air with cold air on the roof or when the wind meets

Warm equatorial winds with cool ocean winds, as happens on the coasts of the Pacific Ocean in the United States of America,

Also a kind of fog of valley fog, which occurs as a result of mountains confining thick air, in addition to frosty fog, which occurs in cold mountainous highlands when atoms of water vapor freeze

They accumulate on hard surfaces, forming what is known as frost.

[2] Fog damage:

Fog is caused by excessive humidity in the air, and fog has many risks and damages, the most important of which is lack of vision.

For example:

the US Federal Highway Administration stated that there were more than 31,000 traffic accidents resulting from fog and lack of horizontal visibility between 2002 and 2012 AD.

In addition to that Fog affects all other means of transportation such as planes and boats, and this has led to linking the fog in the movies with the occurrence of a bad thing.

Experts advise when driving in a foggy atmosphere with caution and not to use car headlights with a strong beam, because the water molecules reflect the strong beam and lead to blocking vision a

The driver must use more low-beam headlamps, and in return some countries benefit from fog by collecting it and turning it into drinking water.

California’s redwood treesIt has a fog humidity of 24% to 40%, which means that fog has some benefits as well.

The fog:

The nature surrounding us possesses many phenomena that occur naturally and without human intervention,

These natural phenomena are fog, which is a huge cloud formed by condensation of water vapor on the atoms, and this cloud touches the surface of the earth, and the more intense the vapor, the more intense the fog increases.

Also, fog may have a good effect on the heart of some people, and may leave negative effects for some because they suffer from depression and do not enjoy its beauty and its brilliant view.

Due to the different atmospheric classes, the types of fog vary according to the place of occurrence, and we will talk about the types of fog in our article, and its effect on life.

Types of fog:

There are several types of fog depending on the nature of the formation, including:

1.Radiation :

This type is formed in the early morning during clear and quiet nights, due to the low temperature of the earth and thus the air cools, but it cannot carry the moisture contained in it, so it condenses to form atoms of water that remain suspended in the air, but when the sun rises and its rays are sent, it disappears, and often we find This kind of fog in the fall and early winter.

2.Al-Sahli :

This type is formed in the plain areas and between the hills and mountains, where the cold air that carries water droplets when it recedes below the warm and heavy air, and due to the absence of a way to move to another place, the water droplets condense to form fog, and it is a type of radioactive fog.

3.Horizontal movement :

This type of convergence of a mass of very moist air is formed by a mass of warm air that comes from a water surface, and the air condenses to form a mist with a horizontal movement, and we find it in San Francisco, USA.

4.Slope :

This type appears when a mass of moist air meets a mass of warm air centered on the slope, and then the air expands as a result of increased air pressure and causes fog, and we see it often in the spring and winter seasons.

5.Radioactive fog:

which is formed in the evening when the surface of the earth radiates the heat that it absorbed during the day in the air. When heat is transferred from the ground to the air, water droplets are formed, and it is worth noting that this type of fog does not reach any height above the clouds.

6.Moving fog:

This type of fog is formed when warm and humid air passes over a cold surface, when warm, humid air comes in contact with cooler surface air, water vapor condenses to create fog.

7.Valley fog:Fog

This type of fog is formed in mountain valleys, usually during the winter, when this type of fog appears when the mountains prevent the dense air from escaping, meaning that the fog remains trapped in the valley.

8.Frozen fog:

This type of fog is formed when liquid mist drops become solid surfaces, and cloudy mountain peaks are often covered with freezing fog. This type of fog is common in places with a cold and humid climate, such as the Scandinavian Peninsula or Antarctica .

Fog effects:

Fog produces some negative effects on the ground, including:

1.Increased traffic accidents due to lack of vision, especially when fog is loaded with dust and smoke and makes it difficult for drivers to see.

2.Infection with many serious diseases, especially respiratory diseases , when fog is loaded with dust particles, smoke and dust, it causes respiratory problems, leads to allergies and a feeling of shortness of breath in some people and greatly affects those who suffer from asthma.

3.Damage to vegetables and trees due to the formation of acidic fog containing harmful chemicals.

Benefits of fog:

[1]Before talking about the benefits of fog it is necessary to know that the water droplets that make up it are very small, with a diameter ranging between 1 and 30 microns, as the vision in the fog depends on the size and focus of these drops; they are so light that they do not fall except that they can be moved by the wind

[2]The importance of fog is the amount of water in it, which is a very huge amount, so that it can preserve the life of plants in places where the average rainfall does not exceed more than a few millimeters per yearr

[3]As fog has some environmental benefits in coastal areas such as Sequoia forests. California National ; which adapts F. There are ferns , trees and other plants to collect small water droplets in the fog to meet their water needs

[4]People can also take advantage of fog and extract water from it by harvesting fog, by means of industrial devices specially designed for this task, as a well-prepared project can contribute to collecting fog water and providing water for domestic purposes in towns with a population of more than 500 people.

And for agriculture Forests, for regeneration of degraded, arid and semi-arid ecosystems, where fog is an environmental, economic and social resource , and it is worth noting that some types of fog can help the snow melt faster.

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